CN2492744Y

CN2492744Y - Disposable sealing plug for liquefied petroleum gas cylinder

Info

Publication number: CN2492744Y
Application number: CN 01242797
Authority: CN
Inventors: 李镇权
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-07-25
Filing date: 2001-07-25
Publication date: 2002-05-22
Anticipated expiration: 2011-07-25

Abstract

The utility model provides a disposable bottle stopper for liquid-gas cylinder. The bottle stopper consists of a stopper tube, a stopper lid and a suspension link. The suspension link provided with a draw handle is connected to the outer margin of the bottle stopper through a plurality of small fragile connecting-rods; a lashing strip reaching into the square gap of the bottle stopper and connected to the bottom is arranged on the suspension link at the end corresponding to the draw handle; both sides of the lashing strip are connected to the two inner sides of the square gap through a thin fragile layer; the stopper pipe, the stopper lid and the suspension link are molded by injection of plastics with proper ductility. If the bottle stopper is plugged onto the tube joint at the inlet/outlet of the gas cylinder, gas theft by any intermediate merchant can be prevented and the interests of users can be protected. Besides, the utility model is user-friendly.

Description

The disposable envelope bottle stopper of LP gas cylinder

The utility model relates to stopper, the disposable envelope bottle stopper of particularly a kind of LP gas cylinder.

Liquefied petroleum gas (LPG) has advantages such as pollution-free and easy to use as household fuel, is generalizable in the many cities of China.In prior art, this fuel stores with a steel cylinder, aeration again after using up.Behind aeration, gas filling station all sticks strip of paper used for sealing on the pipe joint of steel cylinder air inlet/outlet, in case others steals gas.Yet, because strip of paper used for sealing is easy to intactly be torn it down, even be torn, user's constant error is thought and is bumped brokenly in the transportation process, do not go to investigate merchant shipper's responsibility, this just has the machine of gas steathily to the merchant shipper, and they can steal out a part and be charged in another empty bottle from several bottles of gas, thereby obtain bigger profit, damaged user's interests.

The purpose of this utility model provides a kind of and can effectively prevent the disposable envelope bottle stopper of LP gas cylinder of gas steathily just at the problem of above-mentioned existence.

Above-mentioned task realizes by this way: this envelope bottle stopper is by the plug pipe, gag and draw ring three parts are formed, the plug pipe connects into dolly with gag, the draw ring outer end links together by several easily broken connector bars and gag outer rim, the size of plug external diameter of pipe and draw ring internal diameter is identical with the internal diameter and the external diameter of the pipe joint of LP gas cylinder air inlet/outlet, it cooperates is drive fit, on draw ring, be provided with one and draw handle, with draw the draw ring of a symmetrical end on be provided with a tie rod, this tie rod links by square breach on the gag and square breach bottom, its both sides link together by easily broken thin layer and square breach, the plug pipe, gag and draw ring are with there being the plastics of certain toughness injection molded together.

The purpose of this utility model also can take following measure to realize:

Termination at the plug pipe is provided with chamfering, arrives in the pipe joint of LP gas cylinder with convenient plug pipe close.

Also be provided with a secondary tie rod that extends in the square breach of plug tube wall on tie rod, the front end of this pair tie rod is connected with the bottom of this square breach with an easily broken connector bar.To make things convenient for pulling out of pipe close.

The utility model is to use like this: after LP gas cylinder is filled thin gas, shut valve, plug pipe of the present utility model and draw ring are filled in respectively on the air inlet/outlet joint internal thread hole of LP gas cylinder and the external diameter just can.When the user need connect the cooking stove pipe, as long as firmly spur the handle that draws of draw ring, each easily broken connector bar just disconnects, remaining at last tie rod is not broken, under the effect of pulling force, the easily broken connector bar of secondary tie rod front end is also broken, and separate with the plug tube wall, and the easily broken thin layer that tie rod is connected with the gag both sides is also by tear fracture.Because draw ring top and secondary tie rod are subject to the tube wall of pipe joint, can only balance pull out, thereby the force direction that helps tie rod is managed pull-out direction towards plug.In addition, secondary tie rod also helps the plug pipe to shrink after breaking away from the plug pipe, therefore the plug pipe can be transferred to by tie rod.From structure of the present utility model and working condition as can be known, can only spur draw ring could pull out plug, does not have other ways.Just illustrated that the agent has stolen gas if the easily broken connector bar of draw ring breaks, thereby play the effect of sealing effectively, prevent that the gas thing takes place steathily.This shows, the utlity model has the effect of good anti-theft gas, protected Consumer's interests.

Below in conjunction with accompanying drawing structure of the present utility model is further described.

Fig. 1 is the sectional view of a kind of concrete structure of the utility model.

Fig. 2 is that the A of Fig. 1 is to view.

Fig. 3 is along the sectional view of B-B line among Fig. 2.

As depicted in figs. 1 and 2, this stopper is made of plug pipe 1, gag 2 and draw ring 3, and plug pipe 1 rear end and gag 2 link, and front end has chamfering 4.Draw ring 3 links together with gag 3 by some easily broken connector bars 5.The diameter of easily broken connector bar 5 is 0.4～0.6 millimeter, 3～4 millimeters of phase spacings, being provided with one in draw ring 3 lower ends draws 6, establish a tie rod 7 in draw ring 3 upper ends, the lower end of this tie rod 7 extends in the square breach 8 of gag 2 and with its bottom and is connected, and its both sides are connected by easily broken thin layer 9 and 8 liang of inboards of square breach.The external diameter of plug pipe 1 is identical with the internal diameter of the pipe joint of LP gas cylinder air inlet/outlet, and it cooperates is drive fit, and the internal diameter of draw ring 3 is identical with the external diameter of pipe joint, and drive fit is also adopted in its cooperation.The length of plug pipe 1 is suitable with 10～20 millimeters, is generally 15 millimeters, and wall thickness is 2 millimeters.Draw ring 3 width are suitable with 5～8 millimeters, generally adopt 6 millimeters, and wall thickness is 1 millimeter.Establish a secondary tie rod 11 that extends in the square breach 10 of plug pipe 1 tube wall on tie rod 7, the front end of this pair tie rod 11 is connected with square 10 bottoms that lack by an easily broken connector bar 12.The plug pipe 1 of this bottle stopper, gag 2 and draw ring 3 are injection molded together with polypropylene plastics.

The utility model is fit to LP gas cylinder and does the use of envelope bottle stopper.

Claims

1, the disposable envelope bottle stopper of a kind of LP gas cylinder, it is characterized in that by plug pipe (1), gag (2) and draw ring (3) three parts are formed, plug pipe (1) connects into dolly with gag (2), draw ring (3) outer end links together by several easily broken connector bars (5) and gag (2) outer rim, plug pipe (1) external diameter is identical with the internal diameter and the external diameter of the pipe joint of LP gas cylinder air inlet/outlet with the size of draw ring (3) internal diameter, it cooperates is drive fit, being provided with one on draw ring (3) draws (6), with draw being provided with a tie rod (7) on the draw ring (3) of (6) symmetrical end, this tie rod (7) links by square breach (8) on the gag (2) and square breach (8) bottom, its both sides link together by easily broken thin layer (9) and square breach (8), plug pipe (1), gag (2) and draw ring (3) are with there being the plastics of certain toughness injection molded together.

2, envelope bottle stopper according to claim 1 is characterized in that being provided with chamfering (4) in the termination of plug pipe (1).

3, envelope bottle stopper according to claim 1, it is characterized in that also being provided with on tie rod (7) a secondary tie rod (11) that extends in the plug pipe square breach of (1) tube wall (8), the front end of this pair tie rod (11) is connected with the bottom of an easily broken connector bar (12) with this square breach (8).